Home / 165,239.82-228,031.55-89,788.32

Finding the Fourth Proportional to 165,239.82, 228,031.55 and 89,788.32

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Solution

The fourth proportional to 165,239.82, 228,031.55 and 89,788.32 is: 123,908.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,239.82 : 228,031.55 = 89,788.32 : x
  2. Step 2: Convert to fraction form
    165,239.82/228,031.55 = 89,788.32/x
  3. Step 3: Cross multiply
    165,239.82x = 228,031.55 × 89,788.32
  4. Step 4: Simplify right side
    165,239.82x = 20,474,569,332.55
  5. Step 5: Solve for x
    x = 20,474,569,332.55/165,239.82
  6. Step 6: Final answer
    x = 123,908.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.